An Investigating of the Impact of Bed Flume Discordance on the Weir-Gate Hydraulic Structure

Discordance and concordance play a significant role in the hydraulic response for the flume, open channel, hydraulic structure, and flow field measurement. Bed discordance and bed concordance are regarded as common problems in open channels. Discordance is the dominant one, which could have an effec...

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Main Authors: Rafi M. Qasim, Alya A. Mohammed, Ihsan A. Abdulhussein
Format: Article
Language:English
Published: Ital Publication 2022-09-01
Series:HighTech and Innovation Journal
Subjects:
Online Access:https://hightechjournal.org/index.php/HIJ/article/view/327
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author Rafi M. Qasim
Alya A. Mohammed
Ihsan A. Abdulhussein
author_facet Rafi M. Qasim
Alya A. Mohammed
Ihsan A. Abdulhussein
author_sort Rafi M. Qasim
collection DOAJ
description Discordance and concordance play a significant role in the hydraulic response for the flume, open channel, hydraulic structure, and flow field measurement. Bed discordance and bed concordance are regarded as common problems in open channels. Discordance is the dominant one, which could have an effect on the hydraulic structure that is constructed inside the channel. This paper deals with the impact of bed flume discordance on hydraulic flow characteristics at the weir-gate downstream hydraulic regime. Four configurations with different lengths and heights of the bed flume discordance are adopted here to investigate the impact of these configurations on the hydraulic characteristics. In addition, one configuration of the bed flume concordance is adopted to compare with the other four configurations. At downstream, the average water depth becomes dimensionless by dividing by upstream water depth, vertical distance between weir and gate, length of downstream, length of concordance, and length of discordance in order to evaluate the inequality in the distribution of Froude number. On one hand, certain results appear strongly between Reynolds number and Froude number at downstream, actual discharge and flow velocity at downstream, flow area past the gate and Froude number at downstream. On the other hand, there was a complex dramatic relation between the weir-gate discharge coefficient and Froude number at downstream. Overall, the study shows that there is a good relationship between specific energy, water depth, and flow speed.   Doi: 10.28991/HIJ-2022-03-03-09 Full Text: PDF
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spelling doaj.art-2ab89d6eb2cb49099fb270b1a30453092022-12-22T03:38:37ZengItal PublicationHighTech and Innovation Journal2723-95352022-09-013334135510.28991/HIJ-2022-03-03-0993An Investigating of the Impact of Bed Flume Discordance on the Weir-Gate Hydraulic StructureRafi M. Qasim0Alya A. Mohammed1Ihsan A. Abdulhussein2Basra Engineering Technical College, Southern Technical University, Basra 61003,Basra Engineering Technical College, Southern Technical University, Basra 61003,Basra Engineering Technical College, Southern Technical University, Basra 61003,Discordance and concordance play a significant role in the hydraulic response for the flume, open channel, hydraulic structure, and flow field measurement. Bed discordance and bed concordance are regarded as common problems in open channels. Discordance is the dominant one, which could have an effect on the hydraulic structure that is constructed inside the channel. This paper deals with the impact of bed flume discordance on hydraulic flow characteristics at the weir-gate downstream hydraulic regime. Four configurations with different lengths and heights of the bed flume discordance are adopted here to investigate the impact of these configurations on the hydraulic characteristics. In addition, one configuration of the bed flume concordance is adopted to compare with the other four configurations. At downstream, the average water depth becomes dimensionless by dividing by upstream water depth, vertical distance between weir and gate, length of downstream, length of concordance, and length of discordance in order to evaluate the inequality in the distribution of Froude number. On one hand, certain results appear strongly between Reynolds number and Froude number at downstream, actual discharge and flow velocity at downstream, flow area past the gate and Froude number at downstream. On the other hand, there was a complex dramatic relation between the weir-gate discharge coefficient and Froude number at downstream. Overall, the study shows that there is a good relationship between specific energy, water depth, and flow speed.   Doi: 10.28991/HIJ-2022-03-03-09 Full Text: PDFhttps://hightechjournal.org/index.php/HIJ/article/view/327bed flumegatehydraulic structurespecific energyweir.
spellingShingle Rafi M. Qasim
Alya A. Mohammed
Ihsan A. Abdulhussein
An Investigating of the Impact of Bed Flume Discordance on the Weir-Gate Hydraulic Structure
HighTech and Innovation Journal
bed flume
gate
hydraulic structure
specific energy
weir.
title An Investigating of the Impact of Bed Flume Discordance on the Weir-Gate Hydraulic Structure
title_full An Investigating of the Impact of Bed Flume Discordance on the Weir-Gate Hydraulic Structure
title_fullStr An Investigating of the Impact of Bed Flume Discordance on the Weir-Gate Hydraulic Structure
title_full_unstemmed An Investigating of the Impact of Bed Flume Discordance on the Weir-Gate Hydraulic Structure
title_short An Investigating of the Impact of Bed Flume Discordance on the Weir-Gate Hydraulic Structure
title_sort investigating of the impact of bed flume discordance on the weir gate hydraulic structure
topic bed flume
gate
hydraulic structure
specific energy
weir.
url https://hightechjournal.org/index.php/HIJ/article/view/327
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